Johnnie Cochran brought a state-law defamation action against petitioner Ulysses Tory. The state trial court determined that Tory (with the help of petitioner Ruth Craft and others) had engaged in unlawful defamatory activity. It found, for example, that Tory, while claiming falsely that Cochran owed him money, had complained to the local bar association, had written Cochran threatening letters demanding $10 million, had picketed Cochran's office holding up signs containing various insults and obscenities; and, with a group of associates, had pursued Cochran while chanting similar threats and insults. App. 38, 40-41. The court concluded that Tory's claim that Cochran owed him money was without foundation, that Tory engaged in a continuous pattern of libelous and slanderous activity, and that Tory had *736 used false and defamatory speech to "coerce" Cochran into paying "amounts of money to which Tory was not entitled" as a "tribute" or a "premium" for "desisting" from this libelous and slanderous activity. Id., at 39, 42-43.